1
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Qin J, Jiang S, Luo X, Wang T, Liu P, Yuan B, Yan R. I 2-catalyzed synthesis of 3-aminopyrrole with homopropargylic amines and nitrosoarenes. Chem Commun (Camb) 2024. [PMID: 38477099 DOI: 10.1039/d4cc00482e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
The synthesis of 3-aminopyrrole using the amination reagent nitrosoarenes and homopropargylic amines catalyzed by I2 through cyclization and amination has been developed. This protocol features excellent functional group tolerance and mild reaction conditions, yielding 3-aminopyrroles in moderate to good yields without a metal catalyst. This method realizes the construction and amination of the 3-aminopyrroles in which nitrosoarenes serve as the amine source and oxidant.
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Affiliation(s)
- Jiaze Qin
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 73000, Gansu, China.
| | - Shixuan Jiang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 73000, Gansu, China.
| | - Xiaofeng Luo
- Chengdu Guibao Science and Technology Co., Ltd, Chengdu 610041, Sichuan, China
| | - Tianqiang Wang
- Chengdu Guibao Science and Technology Co., Ltd, Chengdu 610041, Sichuan, China
| | - Peihua Liu
- Research Institute of Oil and Gas Technology of Changqing Oilfield Company, Xian 710018, Shaanxi, China
| | - Bingxiang Yuan
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 73000, Gansu, China.
| | - Rulong Yan
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 73000, Gansu, China.
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2
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Yagci BB, Donmez SE, Şahin O, Türkmen YE. Catalytic aza-Nazarov cyclization reactions to access α-methylene-γ-lactam heterocycles. Beilstein J Org Chem 2023; 19:66-77. [PMID: 36741815 PMCID: PMC9874235 DOI: 10.3762/bjoc.19.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Accepted: 01/10/2023] [Indexed: 01/19/2023] Open
Abstract
We have developed a catalytic aza-Nazarov reaction of N-acyliminium salts generated in situ from the reaction of a variety of cyclic and acyclic imines with α,β-unsaturated acyl chlorides to afford substituted α-methylene-γ-lactam heterocycles. The reactions proceed effectively in the presence of catalytic (20 mol %) amounts of AgOTf as an anion exchange agent or hydrogen-bond donors such as squaramides and thioureas as anion-binding organocatalysts. The aza-Nazarov cyclization of 3,4-dihydroisoquinolines with α,β-unsaturated acyl chlorides gives tricyclic lactam products 7 in up to 79% yield with full diastereocontrol (dr = >99:1). The use of acyclic imines in a similar catalytic aza-Nazarov reaction with 20 mol % of AgOTf results in the formation of α-methylene-γ-lactam heterocycles 19 in up to 76% yield and with good to high diastereoselectivities (4.3:1 to 16:1). We have demonstrated the scalability of the reaction with a gram-scale example. The relative stereochemistry of the α-methylene-γ-lactam products 19 has been determined via the single-crystal X-ray analysis of lactam 19l. In order to shed light on the details of the reaction mechanism, we have performed carefully designed mechanistic studies which consist of experiments on the effect of β-silicon stabilization, the alkene geometry of the α,β-unsaturated acyl chloride reactants, and adventitious water on the success of the catalytic aza-Nazarov reaction.
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Affiliation(s)
- Bilge Banu Yagci
- Department of Chemistry, Faculty of Science, Bilkent University, Ankara 06800, Turkey
| | - Selin Ezgi Donmez
- Department of Chemistry, Faculty of Science, Bilkent University, Ankara 06800, Turkey
| | - Onur Şahin
- Department of Occupational Health & Safety, Faculty of Health Sciences, Sinop University, Sinop 57000, Turkey
| | - Yunus Emre Türkmen
- Department of Chemistry, Faculty of Science, Bilkent University, Ankara 06800, Turkey
- UNAM – National Nanotechnology Research Center, Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
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3
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Sagitova EF, Tomilin DN, Sobenina LN, Ushakov IA, Apartsin KA, Trofimov BA. Acyl-tetrahydroindolyl-capped 1,3-diynes in oxidative [4 + 2]-cycloaddition with benzylamine: a one-pot access to 2-acyl-6-phenyl-5-tetrahydroindolylpyridines. MENDELEEV COMMUNICATIONS 2022. [DOI: 10.1016/j.mencom.2022.11.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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4
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Borodina T, Smirnov V, Serykh V, Rozentsveig I. π-Stacking interactions in new arylsulphonylamine-substituted derivatives of imidazo[2,1-b]thiazol. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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5
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Kim H, Xuan Z, Hyun Kim J. Tandem Synthesis of Tetrasubstituted NH Pyrroles from Simple Nitriles. Chem Asian J 2021; 16:3336-3340. [PMID: 34478215 DOI: 10.1002/asia.202100860] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 08/25/2021] [Indexed: 12/22/2022]
Abstract
An efficient tandem route to obtain tetrasubstituted NH pyrroles in a one-pot manner has been developed, staring from simple nitriles, ethyl bromoacetates, and zinc. This reaction involves oxidative dimerization of the zinc bromide complex of β-enaminoesters using cerium ammonium nitrate (CAN) as an oxidant, affording 2,3,4,5-tetrasubstituted pyrroles in yields up to 91%.
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Affiliation(s)
- Hyeongsu Kim
- Department of Chemistry (BK 21 four), Research Institute of Natural Science (RINS), Gyeongsang National University, 52828, Jinju, Gyeongnam, Korea) E-mail
| | - Zi Xuan
- Department of Chemistry (BK 21 four), Research Institute of Natural Science (RINS), Gyeongsang National University, 52828, Jinju, Gyeongnam, Korea) E-mail
| | - Ju Hyun Kim
- Department of Chemistry (BK 21 four), Research Institute of Natural Science (RINS), Gyeongsang National University, 52828, Jinju, Gyeongnam, Korea) E-mail
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6
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Studies towards the Design and Synthesis of Novel 1,5-Diaryl-1 H-imidazole-4-carboxylic Acids and 1,5-Diaryl-1 H-imidazole-4-carbohydrazides as Host LEDGF/p75 and HIV-1 Integrase Interaction Inhibitors. Molecules 2021; 26:molecules26206203. [PMID: 34684786 PMCID: PMC8540437 DOI: 10.3390/molecules26206203] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/07/2021] [Accepted: 10/11/2021] [Indexed: 11/23/2022] Open
Abstract
Two targeted sets of novel 1,5-diaryl-1H-imidazole-4-carboxylic acids 10 and carbohydrazides 11 were designed and synthesized from their corresponding ester intermediates 17, which were prepared via cycloaddition of ethyl isocyanoacetate 16 and diarylimidoyl chlorides 15. Evaluation of these new target scaffolds in the AlphaScreenTM HIV-1 IN-LEDGF/p75 inhibition assay identified seventeen compounds exceeding the pre-defined 50% inhibitory threshold at 100 µM concentration. Further evaluation of these compounds in the HIV-1 IN strand transfer assay at 100 μM showed that none of the compounds (with the exception of 10a, 10l, and 11k, with marginal inhibitory percentages) were actively bound to the active site, indicating that they are selectively binding to the LEDGF/p75-binding pocket. In a cell-based HIV-1 antiviral assay, compounds 11a, 11b, 11g, and 11h exhibited moderate antiviral percentage inhibition of 33–45% with cytotoxicity (CC50) values of >200 µM, 158.4 µM, >200 µM, and 50.4 µM, respectively. The antiviral inhibitory activity displayed by 11h was attributed to its toxicity. Upon further validation of their ability to induce multimerization in a Western blot gel assay, compounds 11a, 11b, and 11h appeared to increase higher-order forms of IN.
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7
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Abstract
This review highlights the state-of-the-art advances in C(sp3)–H functionalization involving isocyanides through the synergistic combination of isocyanide insertion and C(sp3)–H bond activation.
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Affiliation(s)
- Weixiang Wang
- Department of Chemistry
- Innovative Drug Research Center
- School of Medicine
- Shanghai University
- Shanghai 200444
| | - Tianqi Liu
- Department of Chemistry
- Innovative Drug Research Center
- School of Medicine
- Shanghai University
- Shanghai 200444
| | - Chang-Hua Ding
- Department of Chemistry
- Innovative Drug Research Center
- School of Medicine
- Shanghai University
- Shanghai 200444
| | - Bin Xu
- Department of Chemistry
- Innovative Drug Research Center
- School of Medicine
- Shanghai University
- Shanghai 200444
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8
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Deng G, Liu T, Wang Y, Liu B, Tan Q, Xu B. α‐Iminonitriles: Composite Functional Groups for Functionalization of Pyrene. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Guigang Deng
- Department of Chemistry Innovative Drug Research Center Shanghai University 99 Shangda Road Shanghai 200444 P. R. China
| | - Tianqi Liu
- School of Medicine Shanghai University Shanghai 200444 P. R. China
| | - Yuqin Wang
- Department of Chemistry Innovative Drug Research Center Shanghai University 99 Shangda Road Shanghai 200444 P. R. China
| | - Bingxin Liu
- Department of Chemistry Innovative Drug Research Center Shanghai University 99 Shangda Road Shanghai 200444 P. R. China
| | - Qitao Tan
- Department of Chemistry Innovative Drug Research Center Shanghai University 99 Shangda Road Shanghai 200444 P. R. China
| | - Bin Xu
- Department of Chemistry Innovative Drug Research Center Shanghai University 99 Shangda Road Shanghai 200444 P. R. China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 P. R. China
- School of Medicine Shanghai University Shanghai 200444 P. R. China
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9
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Li Y, Qiu S, Fan L, Yin G. Cooperative Palladium and Copper Catalysis: One‐pot Synthesis of Diamino‐Substituted Naphthalenes from Aryl Halides, 1,4‐Bis(trimethylsilyl)butadiyne and Amines. ChemCatChem 2020. [DOI: 10.1002/cctc.201901745] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yuan Li
- College of Chemistry and Chemical Engineering Hubei Key Laboratory of Pollutant Analysis and Reuse TechnologyHubei Normal University Huangshi 435002 P. R. China
| | - Shaozhong Qiu
- College of Chemistry and Chemical Engineering Hubei Key Laboratory of Pollutant Analysis and Reuse TechnologyHubei Normal University Huangshi 435002 P. R. China
| | - Ling Fan
- College of Chemistry and Chemical Engineering Hubei Key Laboratory of Pollutant Analysis and Reuse TechnologyHubei Normal University Huangshi 435002 P. R. China
| | - Guodong Yin
- College of Chemistry and Chemical Engineering Hubei Key Laboratory of Pollutant Analysis and Reuse TechnologyHubei Normal University Huangshi 435002 P. R. China
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10
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Chi H, Li H, Liu B, Ye R, Wang H, Guo YL, Tan Q, Xu B. From Isocyanides to Iminonitriles via Silver-mediated Sequential Insertion of C(sp 3)-H Bond. iScience 2019; 21:650-663. [PMID: 31731202 PMCID: PMC6859232 DOI: 10.1016/j.isci.2019.10.057] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 10/25/2019] [Accepted: 10/27/2019] [Indexed: 11/08/2022] Open
Abstract
Heterocycles are prevalent constituents of many marketing drugs and biologically active molecules to meet modern medical challenges. Isocyanide insertion into C(sp3)–H bonds is challenging especially for the construction of quaternary carbon centers. Herein, we describe an efficient strategy for the synthesis of α-iminonitrile substituted isochromans and tetrahydroisoquinolines (THIQs) with quaternary carbon centers through silver-triflate-mediated sequential isocyanide insertion of C(sp3)–H bonds, where isocyanide acts as the crucial “CN” and “imine” sources. The produced α-iminonitriles have extensive applications as valuable synthetic building blocks for pharmacologically interesting heterocycles. This protocol could be further applied for the synthesis of iminonitrile-decorated phenanthridines and azapyrene. Interestingly, a remarkable aggregation-induced emission (AIE) effect was first observed for an iminonitrile-decorated pyrene derivative, which may open a particular area for iminonitrile applications in materials science. Iminonitrile formation via sequential C(sp3)-H bond isocyanide insertion Construction of quaternary center Isocyanide as both "imine" and "CN" sources Valuable synthetic building blocks and novel AIEgen
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Affiliation(s)
- Huiwen Chi
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai 200444, China
| | - Hao Li
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai 200444, China
| | - Bingxin Liu
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai 200444, China
| | - Rongxuan Ye
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai 200444, China; Qianweichang College, Shanghai University, Shanghai 200444, China
| | - Haoyang Wang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Yin-Long Guo
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Qitao Tan
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai 200444, China.
| | - Bin Xu
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai 200444, China; State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China.
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11
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Wang R, Wang S, Li D, Ye F, Leng Y, Wu Y, Chang J, Wu Y. Radical ring opening reaction of pyridine fused heterocycles with IBA-N3 catalyzed by tetra-n-butylammonium iodide. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.02.061] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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12
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Chen Z, Liang P, Liu B, Luo H, Zheng J, Wen X, Liu T, Ye M. A facile tandem decyanation/cyanation reaction of α-iminonitriles toward cyano-substituted amides. Org Biomol Chem 2019; 16:8481-8485. [PMID: 30378615 DOI: 10.1039/c8ob02186d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A new tandem decyanation/cyanation reaction of α-iminonitriles has been developed. A variety of cyano-substituted aryl amides and heteroaryl amides are synthesized in good yields. Both electron-rich and electron-deficient groups are compatible with the standard conditions. This reaction features a nonmetallic cyano source, tandem decyanation and cyanation reaction, waste utilization of the HCN from the hydrolysis of α-iminonitriles, formation of two important functional groups in one-step operation, etc.
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Affiliation(s)
- Zhengwang Chen
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China.
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13
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Khafizova LO, Shaibakova MG, Rikhter NA, Tyumkina TV, Dzhemilev UM. One-pot synthesis of 2,3,5-substituted 1H-pyrroles via the reaction of terminal acetylenes with nitriles and EtAlCl2 catalyzed by Сp2TiCl2. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.01.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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14
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Donmez SE, Soydaş E, Aydın G, Şahin O, Bozkaya U, Türkmen YE. Aza-Nazarov Cyclization Reactions via Anion Exchange Catalysis. Org Lett 2019; 21:554-558. [PMID: 30985150 DOI: 10.1021/acs.orglett.8b03886] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A catalytic aza-Nazarov cyclization between 3,4-dihydroisoquinolines and α,β-unsaturated acyl chlorides has been developed to access α-methylene-γ-lactam products in good yields (up to 79%) as single diastereomers. The reactions proceed efficiently when AgOTf is used as an anion exchange catalyst with a 20 mol % loading at 80 °C. Computational studies were performed to investigate the reaction mechanism, and the findings support the role of the -TMS group in reducing the reaction barrier of the key cyclization step.
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Affiliation(s)
- Selin E Donmez
- Department of Chemistry, Faculty of Science , Bilkent University , Ankara , 06800 , Turkey
| | - Emine Soydaş
- Department of Chemistry , Hacettepe University , Ankara , 06800 , Turkey
| | - Gökçen Aydın
- Department of Chemistry, Faculty of Science , Bilkent University , Ankara , 06800 , Turkey
| | - Onur Şahin
- Sinop University , Scientific and Technological Research Application and Research Center , Sinop , 57000 , Turkey
| | - Uğur Bozkaya
- Department of Chemistry , Hacettepe University , Ankara , 06800 , Turkey
| | - Yunus E Türkmen
- Department of Chemistry, Faculty of Science , Bilkent University , Ankara , 06800 , Turkey.,UNAM - National Nanotechnology Research Center, Institute of Materials Science and Nanotechnology , Bilkent University , Ankara , 06800 , Turkey
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15
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Suzuki N, Kurita R, Kawamura A, Ono T, Masuyama Y. Five-membered zircona- and titanacycloallenes; their diverse reactivity depending upon the position of substituents. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.08.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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16
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Chen Z, Liang P, Zheng J, Zhou Z, Wen X, Liu T, Ye M. Cyanide-Free Ce(III)-Catalyzed Highly Efficient Synthesis of α-Iminonitriles from 2-Aminopyridines and Nitroalkenes via Intermolecular Dehydration Reaction. ACS OMEGA 2018; 3:12520-12529. [PMID: 31457985 PMCID: PMC6644690 DOI: 10.1021/acsomega.8b02214] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 09/24/2018] [Indexed: 05/11/2023]
Abstract
A direct and rapid method for the synthesis of α-iminonitriles achieved good to excellent yields. A novel intermolecular dehydration reaction between 2-aminopyridines and nitroalkenes is reported via a rare-earth-metal catalyst. The merits of this transformation include cyanide-free protocol, short reaction time, simple operation, water as the only byproduct, commercially available reagents, good functional group tolerance, etc. Moreover, nitroalkenes are demonstrated as a new "CN" source in this transformation.
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Affiliation(s)
- Zhengwang Chen
- Key
Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, P. R. China
- Key
Laboratory of Functional Molecular Engineering of Guangdong Province, South China University of Technology, Guangzhou 510640, P. R. China
- E-mail: . Phone/Fax: +86 797-8793670 (Z.C.)
| | - Pei Liang
- Key
Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, P. R. China
| | - Jing Zheng
- Key
Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, P. R. China
| | - Zhonggao Zhou
- Key
Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, P. R. China
| | - Xiaowei Wen
- Key
Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, P. R. China
| | - Tanggao Liu
- Key
Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, P. R. China
| | - Min Ye
- Key
Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, P. R. China
- E-mail: (M.Y.)
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17
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Kalbandhe AH, Kavale AC, Karade NN. Ring-Opening Reaction of Imidazo[1,2-a]pyridines Using (Diacetoxyiodo)benzene and NaN3: The Synthesis of α-Iminonitriles. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601480] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Amit H. Kalbandhe
- Department of Chemistry; Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur; 440033 Nagpur India
| | - Ashish C. Kavale
- Department of Chemistry; Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur; 440033 Nagpur India
| | - Nandkishor N. Karade
- Department of Chemistry; Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur; 440033 Nagpur India
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18
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Vinogradov MG, Turova OV, Zlotin SG. Nazarov reaction: current trends and recent advances in the synthesis of natural compounds and their analogs. Org Biomol Chem 2017; 15:8245-8269. [DOI: 10.1039/c7ob01981e] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Recent applications of the Nazarov reaction to stereoselective synthesis of pharmacology-relevant cyclopentenone scaffolds are summarized.
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Affiliation(s)
- Maxim G. Vinogradov
- N.D. Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
- 119991 Moscow
- Russian Federation
| | - Olga V. Turova
- N.D. Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
- 119991 Moscow
- Russian Federation
| | - Sergei G. Zlotin
- N.D. Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
- 119991 Moscow
- Russian Federation
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19
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Jana N, Driver TG. Assembly of functionalized carbocycles or N-heterocycles through a domino electrocyclization-[1,2] migration reaction sequence. Org Biomol Chem 2016; 13:9720-41. [PMID: 26275170 DOI: 10.1039/c5ob01334h] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The development of processes that streamline the synthesis of complex, functionalized carbocycles and heterocycles remains a hotly pursued topic because their scaffolds are present in a range of bioactive molecules and electronic materials. Although the Nazarov reaction has emerged to be useful in the synthesis of carbocycles and heterocycles, using an electrocyclization to trigger a migration remains underdeveloped. By constructing several bonds in one operation, domino reaction sequences are particularly effective at improving the efficiency of synthesis. The use of transition metal catalysts has the potential to render these processes stereoselective. This review examines the use of electrocyclization-[1,2] migrations to construct molecules and is organized by the type of ring constructed and the order of the two steps in this process.
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Affiliation(s)
- Navendu Jana
- University of Illinois at Chicago, Department of Chemistry, 845 West Taylor Street, Chicago, IL 60607, USA.
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20
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Chen ZB, Zhang Y, Yuan Q, Zhang FL, Zhu YM, Shen JK. Palladium-Catalyzed Synthesis of α-Iminonitriles from Aryl Halides via Isocyanide Double Insertion Reaction. J Org Chem 2016; 81:1610-6. [PMID: 26816103 DOI: 10.1021/acs.joc.5b02777] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
An efficient one-pot synthesis of α-iminonitriles from readily available aryl halides via palladium-catalyzed double isocyanide insertion and elimination has been developed, without using various hypertoxic cyanides and excess oxidants. Furthermore, the utility of this reaction was demonstrated by the rapid total synthesis of quinoxaline and the reaction of functional groups exchanged with aryl halides.
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Affiliation(s)
- Zhen-Bang Chen
- College of Pharmaceutical Sciences, Soochow University , Suzhou, 215123, China
| | - Ying Zhang
- College of Pharmaceutical Sciences, Soochow University , Suzhou, 215123, China
| | - Qing Yuan
- College of Pharmaceutical Sciences, Soochow University , Suzhou, 215123, China
| | - Fang-Ling Zhang
- College of Pharmaceutical Sciences, Soochow University , Suzhou, 215123, China
| | - Yong-Ming Zhu
- College of Pharmaceutical Sciences, Soochow University , Suzhou, 215123, China
| | - Jing-Kang Shen
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai, 201203, China
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21
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Mir NA, Choudhary S, Ramaraju P, Singh D, Kumar I. Microwave assisted aminocatalyzed [3 + 2] annulation between α-iminonitriles and succinaldehyde: synthesis of pyrrole-3-methanols and related polycyclic ring systems. RSC Adv 2016. [DOI: 10.1039/c6ra06831f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A quick and highly efficient method for the synthesis of substituted pyrrole-3-methanols from α-iminonitriles and succinaldehyde under microwave irradiation is reported with good to high yields (up to 75%).
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Affiliation(s)
- Nisar A. Mir
- Department of Chemistry
- Birla Institute of Technology and Science
- Pilani 333 031
- India
| | - Sachin Choudhary
- Department of Chemistry
- Birla Institute of Technology and Science
- Pilani 333 031
- India
| | - Panduga Ramaraju
- Department of Chemistry
- Birla Institute of Technology and Science
- Pilani 333 031
- India
| | - Deepika Singh
- Instrumentation Division
- IIIM-CSIR Lab
- Jammu 180 001
- India
| | - Indresh Kumar
- Department of Chemistry
- Birla Institute of Technology and Science
- Pilani 333 031
- India
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22
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He C, Wang J, Gu Z. BF3·OEt2-Promoted Synthesis of 2,3-Metallocenocyclohexanones: A 1,2-Hydride Shift and Cationic Cyclization Strategy. J Org Chem 2015. [DOI: 10.1021/acs.joc.5b01511] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Congfa He
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China
| | - Jie Wang
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China
| | - Zhenhua Gu
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China
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23
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Truong PM, Mandler MD, Doyle MP. The chemistry of vicinal tricarbonyls: an expedient route to fully-substituted 3-aminopyrroles. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2014.10.139] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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24
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Yu S, Sun R, Chen H, Xie X, Liu Y. Zirconium-Mediated Multicomponent Reactions of 1,3-Butadiynes with Ylidenemalononitriles to Form Functionalized 1,8-Naphthyridine and Cyclopenta[b]pyridine Derivatives. Chemistry 2014; 21:1420-4. [DOI: 10.1002/chem.201405899] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Indexed: 11/06/2022]
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